<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    <h2>计算器 n1 / n2 = ?</h2>
    <form action="/divide" method="post">
        n1 <input name="n1">
        n2 <input name="n2">
        <input type="submit" value="n1/n2=?">
    </form>
    </body>
</html>